Mac Cárthaigh

MacCarthy (Irish: Mac Cárthaigh), also spelled McCarthy, is a Gaelic Irish clan originating from Munster, an area they ruled during the Middle Ages. It was and continues to be divided into several great branches. The MacCarthy Reagh, MacCarthy of Muskerry, and MacCarthy of Duhallow dynasties were the three most important of these, after the central or MacCarthy Mór line.

McCarthy (also spelled MacCarthy or McCarty) may refer to:

• MacCarthy, a Gaelic Irish clan
• McCarthy, Alaska, United States
• McCarthy Road, a road in Alaska
• McCarthy (band), an indie pop band
• Château MacCarthy, a Bordeaux wine
• McCarthy Tétrault, a Canadian law firm
• McCarthy evaluation, programming-language semantics also called short-circuit evaluation, named after John McCarthy (computer scientist)
• McCarty Creek, a stream in Missouri